From 82389556e603a1f40c944d120f4fb835582d3941 Mon Sep 17 00:00:00 2001
From: Liet Blue <127093491+lietblue@users.noreply.github.com>
Date: Sat, 28 Mar 2026 15:33:56 +0800
Subject: [PATCH] fix(stage-ui): return empty string instead of empty array in
 mcp_list_tools error fallback (#1497)

---
 packages/stage-ui/src/tools/mcp.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/stage-ui/src/tools/mcp.ts b/packages/stage-ui/src/tools/mcp.ts
index 3bbe54e37..1d174d56d 100644
--- a/packages/stage-ui/src/tools/mcp.ts
+++ b/packages/stage-ui/src/tools/mcp.ts
@@ -13,7 +13,7 @@ const tools = [
       }
       catch (error) {
         console.warn('[mcp_list_tools] failed to list tools:', error)
-        return []
+        return ''
       }
     },
     parameters: z.object({}).strict(),